Mercedes-Benz 300DT Air Conditioning Parts

Your One-Stop Shop For Trusted Mercedes-Benz 300DT Air Conditioning Parts

If you’re in search of Mercedes-Benz 300DT Air Conditioning Parts aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 31 Air Conditioning Parts from top brands with prices ranging from $0.99 to $468.83.

Beyond great prices, we stock trusted brands manufacturing all types of Air Conditioning Parts for your Mercedes-Benz 300DT. Of the 11 OEM and aftermarket parts brands we carry, some of the most popular are Factory Air, Dorman, and Carquest Premium.

And don’t forget to read customer reviews across all Air Conditioning Parts categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Air Conditioning Parts have to cost top dollar, and we prove it. Browse our top Mercedes-Benz 300DT Air Conditioning Parts below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Mercedes-Benz 300DT Air Conditioning Parts

ACM – Air Conditioning Temperature Switch (Part No.R105511825ACM)

Air Conditioning Temperature Switch

from

$33.17
ACM is a supplier of Original Equipment quality climate control products. 2 spade terminals on short pigtail.
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National – Bearings (Part No.S-128)

Bearings

from

$11.29
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Available in both caged design and full complement
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Carquest Standard – Reman GM R4 Heavy Compressor w/ Clutch (Part No.DW57228)

Reman GM R4 Heavy Compressor w/ Clutch

from

$219.99
Carquest Standard compressors offer reliable, long-lasting performance for a leak-free, dependable repair.

Product Features:
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
  • All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
  • All units have new seals, O-rings, gaskets and clutch bearings
  • Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
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Carquest Premium – A/C Block Type O-Ring Expansion Valve (Part No.T38602)

A/C Block Type O-Ring Expansion Valve

from

$44.99
Carquest Expansion Valves are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each expansion valve is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.

Product Features:
  • The bodies of these expansion valves are machined from a single block of aluminum or brass metal.
  • Each expansion valve has settings for tonnage and superheat based on the vehicle specifications.
  • Each expansion valve is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
  • O-Rings necessary for installation are included.
  • O-Rings necessary for installation are included.
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Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26769)

O-Ring & Gasket A/C System Seal Kit

from

$31.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All the seals needed to complete the job
  • Compatible with both R12 and R134a refrigerants
  • Application specific
  • SUV and rear air applications
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Behr – A/C Pressure Switch (Part No.R1054178181BEH)

A/C Pressure Switch

from

$22.52
Behr GmbH & Co. KG, Stuttgart, is a specialist for automotive air conditioning and engine cooling systems, the Behr Group is one of the world’s leading manufacturers and suppliers of Original Equipment cooling and air conditioning products for European passenger and commercial vehicles. 2 bar low pressure and 30 bar high pressure binary switch. This switch is designed to be compatible with R-12 and R134a refrigerants. Located on receiver-drier with 2 spade terminals. Used for compressor cut-out.
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Carquest Premium – A/C Filter Drier (Part No.T33396)

A/C Filter Drier

from

$27.99
Carquest Accumulators and Receiver Driers are designed to store, filter and dry the air conditioning refrigerant to provide proper performance and durability for the air conditioning system. They are manufactured to meet or exceed original equipment specifications.

Product Features:
  • All parts meet or exceed original equipment standards for moisture absorption, pressure and temperature resistance, air tightness, vibration resistance, corrosiveness, and pulse pressure.
  • Desiccant is 100% tested and assembled in a controlled environment to ensure performance meets or exceeds original equipment standards.
  • All accumulators and receiver driers are helium leak tested prior to packaging.
  • O-Rings necessary for installation are included.
  • O-Rings necessary for installation are included.
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Behr – Air Conditioning Evaporator Temperature Sensor, Without Bracket (Part No.R107137676BEH)

Air Conditioning Evaporator Temperature Sensor, Without Bracket

from

$64.09
Air Conditioning Evaporator Temperature Sensor, Without Bracket

Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26771)

O-Ring & Gasket A/C System Seal Kit

from

$11.49
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All the seals needed to complete the job
  • Compatible with both R12 and R134a refrigerants
  • Application specific
  • SUV and rear air applications
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Dorman – 5-Wire Style Relay (Part No.85170)

5-Wire Style Relay

from

$15.99
This HVAC relay connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this HVAC relay connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Electrical Harness – 2-Wire GM A/C Clutch with Diode (Part No.85143)

Electrical Harness - 2-Wire GM A/C Clutch with Diode

from

$11.99
This HVAC clutch coil connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this HVAC clutch coil connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Factory Air – Green Round O-Ring (Part No.24650)

Green Round O-Ring

from

$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – Green Round O-Ring (Part No.24615)

Green Round O-Ring

from

$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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National – Bearings (Part No.5000-KFF)

Bearings

from

$29.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Carquest Premium – New Compressor with Clutch, GM R4 Heavy (Part No.T58228)

New Compressor with Clutch, GM R4 Heavy

from

$315.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All compressors go through sophisticated testing and leak test processes
  • Includes specific electrical connector to eliminate splicing
  • For ease of installation this compressor includes all gaskets, O-rings or sealing washers needed to repair your car
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function, and durability
  • Double lip shaft seal to reduce refrigerant leakage over time requiring less maintenance
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Carquest Premium – AC Pressure Switch (Part No.ACA1675)

AC Pressure Switch

from

$24.79
The Premium CarQuest Vehicle Solutions line of vehicle electronics are designed for OE form, fit and function for both import and domestic vehicles. The A/C Pressure Switch monitors system pressures, aiding in proper and efficient control of the compressor, fans and system levels. An improperly functioning A/C Pressure Switch will provide erratic or inaccurate actuation and operation, severely affecting system performance and function. Without reliable and accurate actuation from a properly functioning A/C Pressure Switch, critical components and the system as a whole are left unregulated and unprotected which can lead to excessive wear and tear on critical components and costly system damage.

Product Features:
  • Designed and manufactured with high quality materials, industry leading electronic components and strict quality controls. Engineered to meet or exceed OE performance and to meet the uncompromising demands of service professionals.
  • Direct fit replacement matches proper OE fit, form, and function and ensures trouble free installation of your A/C Pressure Switch.
  • All units are tested using advanced end-of-line equipment that pressurize the A/C Pressure Switch, confirm proper calibration and functionality, and check for leaks to ensure each A/C Pressure Switch meets manufacturing specifications before packaging.
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Santech – A/C Pressure Switch (Part No.R1054178181SII)

A/C Pressure Switch

from

$18.63
A/C Pressure Switch

Factory Air – Sealing Washer Kit (Part No.24338)

Sealing Washer Kit

from

$5.29
Includes O-Ring; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – Sealing Washer Kit (Part No.24336)

Sealing Washer Kit

from

$12.29
Includes O-Ring; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – Sealing Washer Kit (Part No.24340)

Sealing Washer Kit

from

$9.49
Includes O-Ring; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – Sealing Washer Kit (Part No.24334)

Sealing Washer Kit

from

$12.29
Includes O-Ring; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – New Nippondenso 10P Clutch Assembly w/ Coil (Part No.47599)

New Nippondenso 10P Clutch Assembly w/ Coil

from

$242.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All mounting hardware included
  • Every coil tested for proper ohms
  • Vehicle specific applications
  • Coated to prevent corrosion
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Air Conditioning Parts Brands You Can Trust For Your Mercedes-Benz 300DT

11 trusted brands of Air Conditioning Parts line our shelves, ready to help keep your Mercedes-Benz 300DT running smooth. Below are some of the most popular brands and their top Air Conditioning Parts offerings:

Popular Carquest Standard Air Conditioning Parts

Carquest Standard products for the Mercedes-Benz 300DT span several categories. Some of the highest-rated Carquest Standard Air Conditioning Parts that will fit your Mercedes-Benz 300DT are:
Reman GM R4 Heavy Compressor w/ Clutch
from $219.99
(2)
Reman GM R4 Heavy Compressor w/ Clutch
AC Compressor Without Clutch

Top Mercedes-Benz 300DT Air Conditioning Parts from Factory Air

Your Mercedes-Benz 300DT will be purring again thanks to Factory Air brand Air Conditioning Parts available for online order or in-store pick up. Popular Factory Air parts include:
Cap & Valve A/C System Seal Kit
from $16.99
(6)
Cap & Valve A/C System Seal Kit
AC Line O-Rings
Sealing Washer Kit
from $12.29
(1)
Sealing Washer Kit
AC Compressor Gaskets

Most Purchased Mercedes-Benz 300DT Air Conditioning Parts from Carquest Premium

When you buy the most frequently purchased Carquest Premium brand Air Conditioning Parts, you can be confident it will be the right part for your Mercedes-Benz 300DT. Here are the Carquest Premium Air Conditioning Parts Advanced Auto customers buy the most:
New Compressor with Clutch, GM R4 Heavy
from $315.99
This product is not rated
New Compressor with Clutch, GM R4 Heavy
AC Compressor With Clutch
Cap & Valve A/C System Seal Kit
from $16.99
(6)
Cap & Valve A/C System Seal Kit
AC Line O-Rings
5-Wire Style Relay
from $15.99
This product is not rated
5-Wire Style Relay
AC Relay Connectors

FAQs for Mercedes-Benz 300DT Air Conditioning Parts

What are the most purchased Air Conditioning Parts for the Mercedes-Benz 300DT?

Out of 31 Air Conditioning Parts for the Mercedes-Benz 300DT, the most popular in our inventory are:
5-Wire Style Relay
from $15.99
This product is not rated
5-Wire Style Relay
AC Relay Connectors
Green Round O-Ring
from $1.99
This product is not rated
Green Round O-Ring
AC Compressor Seals
Ball Bearing
from $22.29
(4)
Ball Bearing
AC Compressor Thrust Bearings

What are the top-rated Mercedes-Benz 300DT Air Conditioning Parts?

Top-rated Air Conditioning Parts for your Mercedes-Benz 300DT based on customer reviews/ratings are:
A/C Block Type O-Ring Expansion Valve
from $44.99
(1)
A/C Block Type O-Ring Expansion Valve
“The one delegated for 99’s did not have the two mounting holes required by my car. I actually needed the 2000 year model valve. That one worked great.”